top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration Why to Join

    Get Free Puzzle Updates

Facebook Login
Site Registration

How many socks must be removed to ensure they contain: (a) a matching pair? (b) a blue pair?

+1 vote
31 views

If there are ten blue socks, ten red socks and ten brown socks in a drawer in a dark room how many socks must be removed to ensure they contain: (a) a matching pair? (b) a blue pair?

posted Mar 30 by anonymous

Share this puzzle
Facebook Share Button Twitter Share Button Google+ Share Button LinkedIn Share Button Multiple Social Share Button

1 Answer

0 votes

(a) a matching pair:
only If we pick 4 socks we can ensure that at least 1 of the 3 colors will repeat.

(b) a blue pair:
Only if we pick 22 socks we can ensure that there is at least 1 pair of blue socks.

answer Mar 30 by Tejas Naik



Similar Puzzles
0 votes

A man has 53 socks in his drawer. They are 21 identical blue, 15 identical black and 17 identical red. The light went off and he is in complete darkness. How many socks must he take out to be 100% certain that he has a pair of black socks?

0 votes

It’s midnight and there is power failure. You have twenty two green socks and thirty five purple socks in your dresser drawer. How many socks do you have to take out to be sure of having a pair that matches.

0 votes

There were 200 fishes in an aquarium, 99% of which were red.
How many red fishes must be removed to make the percentage of red fishes 98%?

+1 vote

Cathy has twelve black socks and twelve white socks in her drawer.

In complete darkness, and without looking, how many socks must she take from the drawer in order to be sure to get a pair that match?

+1 vote

There are 4 black socks and 4 white socks in a drawer. Now you have to go out wearing your shoes.
So how many minimum number of times you need to remove the sock from drawer so that you can go out?

Contact Us
+91 9880187415
sales@queryhome.net
support@queryhome.net
#280, 3rd floor, 5th Main
6th Sector, HSR Layout
Bangalore-560102
Karnataka INDIA.
QUERY HOME
...